The Assessor's duty is to locate, identify and equitably assess all property in Maricopa County. Contact the Department for a complete Property Class Summary .Arizona Department of Revenue. Business personal property deals with the physical assets used in the operation of the business. Personal property is reported on the Business Property. Statement (DOR Form 82520) for commercial business property or the Agricultural Business Property. Ownership of real property is usually transferred in a formal process, and ownership is not complete until the financial obligation has been satisfied. Where do I send the form? File a Business Property Statement, Form DOR 82520, or an Agricultural Business Property Statement, Form DOR 82520A, with the County Assessor each year. Annually on April 1st, completed, current Business Personal Property Statements are due to the Coconino County Assessor's Office.